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DST Golf Shaft Selection Guide

Selecting the shaft option best suited to your game in DST irons typically involves three key factors:

  1. Swing Speed
  2. Swing Tempo
  3. Preferred Ball Flight trajectory in KBS Tour/Tour Lite shafts

1. Swing Speed

The first factor to consider is swing speed. In general, Regular Flex shafts tend to suit players with slower swing speeds, while Stiff and X-Stiff Flex shafts are better suited to players with faster swing speeds.

One simple way to help determine a suitable shaft flex is to visit a driving range equipped with TopTracer or similar launch monitor technology. This technology can measure your 7-iron club head speed. 

Alternatively, if you do not have access to launch monitor data, you can estimate shaft flex based on your average 7-iron carry distance.

As a guide, refer to the table below with suggested shaft flexes:

7 iron Swing Speed Carry Distance (Yards) Carry Distance (Metres) Suggested Shaft Flex
Under 80mph Less than 155 yards Less than 140m Regular
81-90mph 156-175 yards 140-160m Stiff
Over 90mph More than 176 yards More than 160m X-Stiff

2. Swing Tempo

The second factor to consider is swing tempo (smooth, moderate, or quick).

Players with a smoother rhythm or tempo to their swing generally place less load on the shaft during transition and impact. As a result, they may benefit from a Regular Flex shaft. Players with a more aggressive or quicker tempo typically benefit from a Stiff or X-Stiff Flex shaft, even if their swing speed is similar.

3. Preferred Ball Flight in KBS Tour or Tour Lite (Standard Weight vs Lightweight Shafts)

The final factor to consider is your preferred ball flight trajectory.

Many golfers tend to launch the ball too high due to inefficient impact conditions. DST irons are designed to promote a more penetrating ball flight. However, shaft weight and kick point also influence launch angle and trajectory.

For example:

The KBS TOUR LITE range generally produces a higher launch and additional spin. The KBS TOUR range is designed for a more mid-trajectory ball flight with excellent stability and control.

As we age, swing speeds and carry distances often decrease. To help offset these changes, there are equipment choices that can help maintain performance and enjoyment of the game.

This is largely a personal preference, but strength and stamina throughout the round can play an important role. During the closing holes, lighter shafts can help reduce fatigue and maintain swing consistency. So lighter weight shafts with higher kick points that are featured in the KBS TOUR LITE range of shafts may help golfers with slower swing speeds. The KBS TOUR range will benefit golfers wanting increased shot control and a mid- trajectory

KBS Tour and KBS Tour Lite Shaft Specs 

Below we have set out the shaft specifications we use in our iron builds. Please note that the recommended swing speeds are just that—recommendations.

We use KBS parallel tip shafts in all of our iron sets.

KBS Tour

Flex Raw Weight

Recommended Club Head Speed (7 iron)

Tip Diameter Launch & Spin
Regular 120g 70-80 MPH .370” Mid/Mid
Stiff 130g 80-90 MPH .370” Mid/Mid
X-Stiff 133g >90 MPH .370” Mid/Mid

KBS Tour Lite

Flex Raw Weight

Recommended Club Head Speed (7 iron)

Tip Diameter Launch & Spin
Regular 105g 65-75 MPH .370” High/High
Stiff 105g 75-85 MPH .370” High/High
X-Stiff 110g >85 MPH .370” High/High